Improvement in railway-car brakes



CROSBY & BALLARD.

Steam Car-Brake.

Patented Feb. 8,, 1870.,

N. PETERS, PHOTO L THDGRAP (tinted swa patent Gttfiirc.

NEW' YORK.

Letters Patent NO.'99,539, dated February 8', 1870.

IMPROVEMENT IN RAILWAY-CAR BRAKES.

The Schedule referred to :in these Letters Patent and making part of thesame.

We, JAY M. CROSBY, of the town of Marathon, Cortland county, and Stateof New York, and WILLIAM BALLARD, of the town of Caroline, Tompkinscounty,

and State of New York, have invented certain Improvements in Gar-Brakes,of which the following is a specification.

Our invention relates to the combination of pipes, cylinders, doublestop-cocks, or double sliding stops, steam-chests, levers, plnngers,rods, arms, and brakes, in such a manner that the same shall be capableof applying the brakes to the wheels of the cars, tender, and engine,the object of our invention being to overcome the: momentum of thelocomotive, and the train attached thereto, by the application of steamthrough and to the different parts and portions of our said invention,which we will now proceed to describe, so that those skilled in the artmay be able to make and use the same, reference being had to theaccompanying drawings, forming a part of this specification, in whiclr-Figure 1 represents a locomotive and tender, with our inventionattached-thereto, one drive-wheel being off, to show the same fully.

Figure? represents the system of levers adopted by-ns, and alsotheinside view of the cylinder, when not in use.

Figure '3 represents the same in use.

Figure 4, asectional view of cylinder No. 2.

Figure 5, a view of the same in position to admit the steam therein, andretain it.

Figure 6, aview' of the same in position to shut the steam therefrom,and to allow the steam in said cylinder to escape therefrom.

Figure 7, an end View of the. same, so placed as to admit the steam.

Figure 8, an end view of the same, so placed as to shut off the steam,and to allow that in the cylinder to escape.

Similar letters of reference indicate like parts.

A is a portion of a locomotive.

B is a tender attached thereto.

G is a steam-cylinder.

cl is a steam or valve che'st.

E is a steam-pipe.

h and f are both stop-cocks, so arranged, that when one is open theother is shut. i

t. is a lever, or handle, applied to both of said stopcocks, in suchmanner as to work both at the same time, being so arranged as to openone and close the other, as aforesaid.

g isaplunging-rod. I

'n is the inside head or stop to the same.

K. is the connecting-joint between the plunging-rod g, and the rod,cord, or chain j.

0, b, and q, are arms or levels.

' and applying the brakes.

z is a rod or chain, connecting the arms or lovers 0 and b, at O and (1'respectively.

1* is a rod or chain, connecting the arms or levers O and g, at thepoints a and E respectively.

at is a rod or chain, connecting the arm or lever o with the front brakel of the forward truck, at the points 1) and q respcctivel y.

9/, a rod or chain, connecting said arm orlcvcr with the back brake l ofsaid truck, at the points I) and 1- respectively. I

t is a rod or chain, connecting the arm or lover with the front brakc lof the rear truck, at the points and 3 respectively.

s is a rod or chain, connecting the arm or lever 11 with the back brakel of the rear truck, at the points s and 2' respectively.

2 l are common, or other brakes, as desired.

in m are the, car-wheels.

No. 1 represents the cylinder, with the steam or valve-chest, in whichthe steam is applied by stop- COCkS,"m(1

No.2is the cylinder, with the steam orvalvc-chcst,

in which the steam is lot on or applied by means of a sliding valve, asis fully shown in figs. 4, 5, (i, 7, and 8, in the accompanyingdrawings.

We use but -one of the stcarn-cyliinlcrs and steam or valve-chests at atime, but hereby claim the privilege to use either, at our option.

The parts of the steam or valve-chest to cylinder No. 2, are. explainedas follows:

H is a metallic slidc, with the hole u. in or near the centrethereof..:-

c is a hole in the chest, communicating with the steam-pipe E and thecylinder 0.

w is ahole' communicating with thecylindcr G and the outside.

H is attached to the handle or lcvcr If it is desired to admit steaminto the cylinder, it is done by drawing up the slide H, by means of thelever or handle 1', until the hole a in said slide is oppositethe hole1: in the steam or valve-chest (I, while the plate H covers the lowerhole 10, and retains the steam therein, therebyprcssing the plunger-g aback,

The position is fully shown in fig. 5.

The steam is shut off by pushing down the slide H, until the hole atherein is opposite the hole w in the chest, when the stcamis shut offby the plate H against the hole '0, while the steam in thecylindcrescapes at the hole w, and the brakes cease to act. The positionis fully shown in fig. 6.

Thus it will be seen, that by letting the steam into the cylinder 0,through the steam-pipe E, which is attached to the boiler A and saidcylinder G, for that purpose, the plunger g n is thrown back, and thebrakes are thereby applied by the action thereof upon the leveror arm 0,and its resultingaction upon the other levers or arms '1) and g, bymeans of the chains, rods, and cords, attaching the same to thebrake-bars of said cars.

Having thus described our invention,

What we claim as new, and desire to secure by Letters Patent, is*- Thecombination of the steam-pipe E, the lever or handle t, the steam-cocksh and f, or the slide-valve H, and the steam or valve-chest d, thecylinder 0,

the plunging-rod g n, the rod, oord,.- or ohztinj, the levers or arms 0,b, and q,the rods or chains 1' and z, and the cords or rods x, 3 t, ands, substantially as and for the purpose hereinbefore set forth.

Dated October 30, 1869.

JAY M. CROSBY. WILLIAM BALLARD.

Witnesses:

N. Boo'rou, G. F. HONBECK.

